GB1402384A - Glass ceramic covered resistors - Google Patents

Glass ceramic covered resistors

Info

Publication number
GB1402384A
GB1402384A GB4107873A GB4107873A GB1402384A GB 1402384 A GB1402384 A GB 1402384A GB 4107873 A GB4107873 A GB 4107873A GB 4107873 A GB4107873 A GB 4107873A GB 1402384 A GB1402384 A GB 1402384A
Authority
GB
United Kingdom
Prior art keywords
ceramic
glass
resistor
resistors
terminals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4107873A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Welwyn Electric Ltd
Original Assignee
Welwyn Electric Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Welwyn Electric Ltd filed Critical Welwyn Electric Ltd
Publication of GB1402384A publication Critical patent/GB1402384A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
    • H01C1/034—Housing; Enclosing; Embedding; Filling the housing or enclosure the housing or enclosure being formed as coating or mould without outer sheath
    • H01C1/036—Housing; Enclosing; Embedding; Filling the housing or enclosure the housing or enclosure being formed as coating or mould without outer sheath on wound resistive element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y10T29/49087—Resistor making with envelope or housing

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Glass Compositions (AREA)

Abstract

1402384 Glass-ceramic covered resistors WELWYN ELECTRIC Ltd 31 Aug 1973 [8 Sept 1972] 41078/73 Heading C1M [Also in Division H1] An electrical resistor comprises a ceramic support 1, a resistive element 2 in the form of a metal wire or strip, and terminals 3, the resistor being provided with an overall covering of electrically insulating glass-ceramic 4. The glassceramic preferably comprises 5-95% by weight of crystalline phase, and has a thermal expansion coefficient of 1 to 8 x 10 <SP>6</SP>/‹ C. (70-370‹ C.). The glass-ceramic preferably consists of, in weight per cent : The ceramic substate 1 may be of steatite; the resistive element 2 may be of Ni-Cr or Ni-Cu alloy; and the terminals 3 may be of Ni-Fe alloy. In forming the resistor a layer of crystallizable glass is applied to the ceramic support and wire or strip (e.g. by spraying or dipping, using an aqueous suspension of powdered glass), and fired at 600-850‹ C. for 1-120 minutes. The composition applied may comprise filler or binder, e.g. clay or methylcellulose.
GB4107873A 1972-09-08 1973-08-31 Glass ceramic covered resistors Expired GB1402384A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT28983/72A IT967290B (en) 1972-09-08 1972-09-08 ELECTRIC RESISTOR AND MANUFACTURING PROCEDURE

Publications (1)

Publication Number Publication Date
GB1402384A true GB1402384A (en) 1975-08-06

Family

ID=11225376

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4107873A Expired GB1402384A (en) 1972-09-08 1973-08-31 Glass ceramic covered resistors

Country Status (8)

Country Link
US (1) US3919682A (en)
CA (1) CA1011837A (en)
DE (1) DE2345102A1 (en)
ES (1) ES418549A1 (en)
FR (1) FR2209182B1 (en)
GB (1) GB1402384A (en)
IT (1) IT967290B (en)
NL (1) NL7312346A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118928A (en) * 1982-04-21 1983-11-09 Geoffrey Cooke Enamelling process

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8100816A (en) * 1981-02-19 1982-09-16 Philips Nv WIRE INJURED RESISTANCE.
US4672358A (en) * 1986-05-19 1987-06-09 North American Philips Corp. Surface-mounted power resistors
USRE33541E (en) * 1986-05-19 1991-02-19 Surface-mounted power resistors
JPS63198240A (en) * 1987-02-10 1988-08-16 Sony Corp Manufacture of resistor
US4926542A (en) * 1988-08-26 1990-05-22 Dale Electronic, Inc. Method of making a surface mount wirewound resistor
JP3093601B2 (en) * 1994-09-28 2000-10-03 株式会社住友金属エレクトロデバイス Ceramic circuit board
DE10122468C1 (en) * 2001-05-09 2003-03-20 Heusler Isabellenhuette Electrical resistance and process for its manufacture
JP3969987B2 (en) * 2001-10-01 2007-09-05 Ｄｏｗａホールディングス株式会社 Ceramic / alloy joints
DE102005022927A1 (en) † 2005-05-13 2006-11-16 Würth Elektronik iBE GmbH Electrical coil element produced by automatic assembly has coil wound onto a core with increased spacing between sections

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229237A (en) * 1962-02-09 1966-01-11 Cons Electronics Ind Small electrical unit with molded ceramic coating
US3392312A (en) * 1963-11-06 1968-07-09 Carman Lab Inc Glass encapsulated electronic devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118928A (en) * 1982-04-21 1983-11-09 Geoffrey Cooke Enamelling process

Also Published As

Publication number Publication date
IT967290B (en) 1974-02-28
US3919682A (en) 1975-11-11
FR2209182B1 (en) 1975-04-11
CA1011837A (en) 1977-06-07
DE2345102A1 (en) 1974-03-21
FR2209182A1 (en) 1974-06-28
ES418549A1 (en) 1976-03-16
NL7312346A (en) 1974-03-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee